Method and apparatus for manufacturing glassware



.Sept 7,

lF. W. STEWART ETAL 2,329,012

aMETHOD APPRATUS FOR MANUFACTURING GLASSWARE 'Filed May 1, 1940 5 Sheets-Sheet 1 gin-n HIDE!)- INVENTORS. FRsasR/CK WILL/AM STEWART A MATTHEW JAMES'KELLY BY ASHLEY I REL-K f 7 7 'ATTORNEQ 5 sheetslshee't 2 Filed May 1, 1940 Sept. 7,1943. F. w. STEWART Al-:r AL

` METHOD AND APPARATUS FOR MANUFACTURING GLASSWARE INVENTORS F/G 3 FREDERICK WILL/AM Srfwnnr MA TrHEw 7A/wss KELLY BY AsHLEYJ REEK v W ATTORNEY Sept 7, 1943. F. w. STEWART Erm. 2,329,012

METHOD AND APPARATUS FOR MANUFACTURING GLASSWARE Filed May 1, 1940 5 Sheets-Sheet 3 Y INVENTORS.

FREDERIC/c W/u/AM Srfmqpr Mur/fsw lh/wss Keur BY fis/#fr u'. R551:

l Y 7 7 'ATTORNEYQ`V Sept. 7, 1943. F. w. STEWARTV ETAL v 2,32%012 METHOD AND APPARATUS FOR MANUFACTURING GLASSWARE Filed May 1, 1940 5 sheets-sheet '4 /93 v l /7/ 206; I /gg 202 l l Ia? V- I4,

./85 l ,l O2,5 l O v an . 200 r :+6 a -lol /95 |55 k 158 94" 92 |63@ :9S/ 203 INVENTORS Z |59 ./@nfksnsmcx M4144" STEWART ,80 Marr/few Jnmss KELLY 17o 3y Aimer J.' REE/z l '90H2 /8 M ATToRN www ' SePf- 7, 1943. F. w. sTwAR-r Erm. 2,329,012

METHOD AND APPARATUS FORQMANUFACTURING GLASSWARE 'Filed May 1, 1940 5 sheets-sheet s ,Patented Sept. 7, 1943i naar ommen AND APPARATUS non Mmmc'rmtme Gnasswsaa Frederick William Stewart, Weston, and Matthew .lames Kelly, Elkins, W. Va., and Ashley J. Reek, Carrick, Pa., assignors to Kelly Foundry and Machine Company, Elkins, W. Va., a corporation of West Virginia Application May 1, 1940, Serial No. 332,862

15 Claims.

This invention relates t'o methods and apparatas-for the manufacture of glassware. It has to do particularly with a paste mold machine wherein the molds are mounted on a rotatable table, the blow pipes being placed on and removed from the machine by hand, or automatically if desired.

One object of this invention is to provide a machine ofthe class described capable of making better quality ware with fewer rejects, said machine being of simplified design and construction.

Another object of this invention is to provide a simplified drive system in a. machine of this class having easily accessible controls and adjustments, also a simplified and reliable epicyclic gear trainarrangement for selective speed rotation of the blow pipe Achuck shaft adjustable whilst the machine is in operation.

Another object is to provide a simplified but eiiicient compressed ,air system for operating the blow pipe chucks, opening and closing the molds and blowing, said system including a single means having certain novel features of construction and operation for controlling various operations.

Another object is to provide in a machine of this class a self-contained compressed air system complete with compressor, tank, reducing valves for high and low pressure air together with air distributing provisions. j

Another object of this invention is to provide a novel form Vof, blow head by means of which the blow pipe chuck shaft is entirely free .of any mechanical connection with fluid supply lines and therefore may be raised, lowered and rotated without fear of twisting on such connections, a common fault in machines of this class4 built heretofore.

Another object is to provide in a machine of the class described, means'enabling the establishment of a connection between the blow pipe and the source of blowing air without imposing appreciable mechanical pressure on the blow pipe and thereby reducing wear on the blow pipe rest.

Another object of this inventin is to eliminate the need for packing glands around the blow pipe chuck shaft .thereby avoiding possible leakage and the need for frequent repacking.

Another object is to provide an improved moldcooling system, said system being substantially closed and self contained, the equipment necessary to the operation thereof being built into and transportable with the machine. p

Another object is to provide in a mold cooling system means enabling an'increase in the amount of heat dissipated thereby increasing the capac- I ity of the systemfor cooling purposes. Another object is to provide for t he settling out of sediment and other foreign matter which might otherwise clog lthe supply lines and spray heads 4 or mark the wareif sprayed thereon. l

Another object is to provide means enabling the quick exchange and replacement of molds and the repositioning or replacement of actuating cylinders therefore. Another object is to provide for variation in the opening and closing speeds of individual mold sections. `,Another lobject is to provide adjustable means for predetermining the maximum clearance between mold halves when in open position.

A further object is to provide an organized substantially self contained machine complete y.with operating equipment, said machine being -Figure 3 is a vertical section through the lower l portion of the machine.

Figure 4 is an enlarged vertical section through Y the top of the machine.

Figure 5 is a view of the right hand side of the machine base.

Figure 6 is a sectional elevation of the manual control mechanism for highpressure air used in opening and closing the molds and vertically reciprocating the blow pipe chuck shaft.

Figure 7 is a sectional elevation of the mechanism shown in Figure 6 with the piston in another position of adjustment.

Figure 9 is a plan view of the valve housing of Figure 6.

Figure 10 is a front view of the Figure9.

Figure 11 is a View taken in the direction of the arrows Il-II of Figure 6.

Figure 12 is a detail taken in the direction of arrows, |2--l2 of Figure 6.

Figure 13 is a detail of a latching pin.

Figure 14 is a front elevation of the mechal housing of Figure 8 is a sectional elevation of the piston.v

whereby the column is rotated.

nism of Figure 6 including the mounting bracket. y

Figure is a detail, partly in section, of athe bloW head piston. f Y Figure l16 is a section taken on line I6--I6 of y Figure 15.

Figure 17 is a, horizontal section taken on line I`I-I1 of Figure 4. Figure 18 is a detail in enlarged vertical sectio'ny showing how the high and low pressure air lines are connected to the distributor.

' Figure 19 is a plan view of the blow pipe rest.

Figure 20 is ai plan view of the drip pan. Figure 21 is a detail showing one of the mold actuating cylinders.

Figure 22 is a detail in section of a clamp for locating said piston and cylinder of Figure 21'vertically on the post.

. Figure 23 is a section taken on line 23-23 of Figure 21. v

Figure 24 is a.' piping diagram of the compressed air system.

Machine frame and drive The numeral I designates the base of the machine shown as a wheeled truck, with axles 2 mounted on center pivots 3 so that the ma.- chine may be turned on a short radius and moved from one location to another. A locking pin is provided for each axle which must be withdrawn before either can be swivelled. The base is formed with a compartmented center section and right and left aproned platforms 5 and 1 respectively, Figures 1, 2 and 3, the drive motor 8 and associated drive mechanism being mounted on platform 6 and the air compressor 9, motor I0 and other apparatus associated therewith mounted on platform 1 to be described in detail hereinafter.

Said base is provided with an axial vertically disposed hub II in which'is fixed a hollow vertical standard I2, Figure' 3, with a spherical antifriction bearing I4 thereon resting on top of hub lII. An annular shoulder I5 on standard I2 bears against the bearing and the entire assembly is tightened down by nut I3 on.- the threaded lower end of standard \I2. vThe bear` ing I4 rotatably supports a hollow column I6 having an annular enlargement I1 which flts` uover the outside of the bearing, said standard yextending above the column as shown in Figure I '4. The spherical bearing will permit 4 deection of the column from the vertical. v

At its upper end the column I6 supports an anti-friction bearing I8 and resting thereon in telescoping relation therewith is the hub I9 of a spider 20, Figures 1 and 4, on which the blow heads are mounted. 2| is the key which insures the spider rotating with the column I6 and it is inserted in contiguous key slots formed in the hub and column.

Near the bottom of the column I6 and .around the perimeter thereof is an annular gear 22, Figure 3, which meshes with a drive pinion 23 -on driven shaft 24 journaled in housing 25 26, Figure 2, designates a housing enclosingcompound rey duction gearing to which shaft 24 is connected by coupling' 24a and in housing 21 is al worm gear having a worm shaft 28, Figure 5, on which a pulley I29 is mounted driven by belt 30. 3l is the three part double groove pulley, Figure 2, of a speed reducer, the pulley beingl mounted on a shaft 32 supported by a pivoted lever 33,

the angular position of which is adjusted by 75 therein correspondinetothe radius` cfcurvature' screw 34. Belt`30 vseats in the right hand groove of pulley 3I, Figure` 2, and belt 35 connected to pulley 36 on motor shaft 31 is seated in the left hand groove. By changing the angular position of lever 33, one belt is tightened and the other loosened, the depth of the grooves being varied automatically due to a center sectiomBla of pul- .ley 3I being shiftable on shaft 32.

As indicated by arrows in Figurel 2, the direction of rotationof column I6 is clockwise.

VA/fluidtight cover 31, Figure 3, closes an oil compartment 38 surrounding the spherical bearing I4, gear 22 and pinion 23. Said compart- -ment is filled with oil through externally located pipe 39, Figure 1. The pipe has a drain plug at the lower end. Surrounding the wall 40 of this compartment andv spaced therefrom `is an annular upstanding flange A4I having radially extending vertical webs 42 spaced at`45 0 which are joined to the Wall 40 thereby forming a series of open top compartments 43. `Each web, except web 44, has a. centrally located open-4 ing 45 therethrough near the oor of 'the compartment thereby connecting adjacent compartments and enabling cooling fluid to pass from one to the other as will later be described in detail. i The mold table ing and tightening the collars.

The table is provided with one or more holes '52 for'V draining sprayed water into an annular drip pan 53 therebelow, the surface of the table sloping slightly toward the` center where the `holes are positioned.

The table of the machine has 'three molds located on centers as will be noted in Figure 2. These molds are made inseparable sections 54 and 55 respectively and "the'molding cavity which is formed when the ,sections are closedinaybe of any desired contour to suit production/requirements. Alsofthe number of molds utilized Iis not limited tofthreein number and i may bev increased within practical limits. Since the molds and actuatingmechanismare identical in each instance,vw ith pfo'slsiblyl the exception of the molding surfacey contounma description of.

Each mold section has' a projecting apertured,

lug 56 pivotally `connected-by a hinge pin 51 with the projecting end 4 of a piston rod 58 associated with an air cylindei59. l,Said air cylinder is mounted on ak verticaljfpivo't post 6I) secured to,` the table. As shown iff/Figure "2,2, and. 23

the rear cap 6I of theaircylind'e ha'safpair'ot vertically' spaced` lugs 62 havin'galigned apertures. 'v

Quick repositioning or replacement, if 'eXcha'ng ing cylinders and molds, is facilitated by the provision of a ringv63 fitted'between the lugsV the post, each bushing having fs'potfs`.61 formed Radial sockets`v5| are provided inl each collar for the insertion of a tool for rotatv hence no delay inl shifting the cylinder to another position.'

Mold stops 1D, Figures 1 and 2, secured to the table Iby bolts 1| are capable of adjustment on the bolts to predetermine the maximum distance to which the mold sections may be swung open, if desired. A series of holes may also be drilled and tapped in the surface of the table so that the' stops may be moved to different positions to accommodate dierent size molds.

The .blow pipe rest and blow pipe 12 designates a spider, Figure l, with three ormore radial arms, the number depending on the number of molds being operated but here shown as three, said arms being spaced 120 apart same as the molds. The spider' has a central hub 13 tight sealing relation therewith by tie bolts 98a screwed into the lower closure and provided with nuts 89 holding the upper closure securely against vertical displacement.

Closure 81a has a centrally located inwardly projecting annular hollow hub 99 which extends about one third the way into the piston chamber. This hub is hollow and the wall of the closure 81a is drilled centrally and tapped for the reception of a threaded air line connection |03 by means of which low pressure blowing air is sup-V plied thereto. Concentl'ic with hub 90 but spaced therefrom and inverted ,relative thereto is a hub |02, also hollow and of equal diameter and length, said hub being formed as a part of the lower closure 88.

mounted on the column I6, Figure 1, and is keyed thereto being rotatable therewith. The extrem-- lity of each arm provides a rest 14 supporting a slotted plate 15, Figure 19, secured thereto by bolts 11. 18 are tapered rollers spaced at 120 on radially equidistant vertical pivots 19 positioned around and perimeter of the arcuate portion of the slot 80, said slot being open to permit insertion and withdrawal of the blow pipe 16. When the plate 15 is properly adjusted the rollers are centered about the vertical axis of the mold forming a rest for the blow pipe.

Each blow pipe has two external enlargements 8| spaced one above the other. Said enlargements are preferably in the form of downwardly tapered circumferential flanges one or the other of which rests on the rollers 18 when the blow pipe is in blowing position depending on the height of the mold. The lowery ends of the blow pipes are flared in the customary manner to vengage the gather of glass, and the upper ends are hexagon shaped, see Figure 4, to correspond with the socket in the blow pipe chuck.

The blow head and 4, 82 is an enlargement at the outer end of each arm of the spider 20, bored vertically to receive a rod 83 having a press fit therein on which the blow head control mechanism is mounted, this to be later described in detail.

9|, VFigure 15, is a piston which supports the blow head chuck shaft and is adapted to reciprocate in said cylindrical sleeve. Said piston comprises anapertured ring 92 to which is joined and from which depend three vertical ribs 94 on 120 centers having a similar ring 95 joined to the lower ends thereof concentric with the upper ring. Each ring has a circular gasket 96 U-shaped in cross section secured thereto, the top gasket facing upwards and the lower downwards, thereby sealing the space between the inside of the sleeve 81 and the perimeter of hubs 90 and 92 above and below said piston from communication with the space inside the piston.

In the vertical center of the piston is a third ring 91 with a smaller aperture, said ring being joined to the aforesaid ribs.

threaded end 93 of the hollow chuck shaft and secured thereon by nut-|01 is an annular antifriction bearing 98, Figures -15 and 17, having a circumferential groove in the outer race in which a ring 99 forming a circular flange is located. Said flange rests on the top of ring 91, the major portion of the length of the bearing being suspended in the aperture and vertically supporting hollow shaft 85, which projects downwardly below extension ||4 and is rotatable in hub |02 and extension ||4 both having shaft bushings therein.

1 |00 is a ring plate which is bolted to ring 91 Each arm of spider 20 has a split clamp holder 84 at the outer extremity, said clamp non-rotatably embracing the cylindrical extension I|4 of the bottom closure 88 of a blow head 86.

The blow pipe chuck shaft 85 reciprocates and rotates. in this cylindrical extension which is sleeved as at l I. 'I'he pipe is held in axial alignment with the vertical axis of the mold chuck with which it is associated.

86 is the blow head of which there are three shown, one supported by each of the arms of spider 20. The blow head, Figures 4, 15, 16 and v'1"1, consists of a'cylindrical sleeve 81 provided with end closures 81a and 88 clamped in air clamping flange 99 firmly in place. This prevents radial and vertical displacement of the bearing whilst permitting shaft to rotate. The outer race of course does not rotate.

By virtue of this construction the blow pipe chuck shaft has no mechanical connection with the air inlet connection |03 and is free to reciprocate and rotate relative thereto without danger of any connections being twisted olf. Furthermore the load on the bearing is negligible and it will give long trouble free operation. 'I'he gaskets 96 eifectively prevent leakage into the piston chamber and insure that blowing air will pass through hub 9|) and down through hollow chuck -shaft 85, passage |04, spring chamber |04' and chuck |05 into the blow pipe when said pipe is in position shown in Figure 4.

The chuck |85 is screwed on chuck shaft 85 and preferablyv locked with a set screw. Said chuck has a hexagon socket to t the blow pipe and rotatethe same. The blow pipe does not ywedge in the socket but has a sliding fit therein.

Upwardly 'through the aperture projects the reduced and partly port only the weight of the blow pipe plus whatever negligible effort the spring |06' may impose thereon. No downward force is exerted on the blow pipe by the chuck |05. This construction relieves the tapered rollers and axis pins of undue wear and promotes long trouble free operation thereof. v

|01 is an inlet coupling connected to a highI pressure supply line |08 admitting air under pressure to the zone of the cylinder above piston 9| for moving it downwardly to engage the chuck |05 -with the upper end of the blow pipe. |09

.is an inlet coupling also connectedv to a high pressure line admitting air under pressure to the zone of the cylinder belowth'e piston for elevating it and disengaging the blow pipe chuck This will be later described inY 'detaiL and blow pipe.

Mechanism for rotating the blow pipes In the machine herein illustrated there is'mechanism for accommodating three blow pipes. The

.blow1 pipe chuck shafts are rotated by a commony gear |2.

Each shaft is vertically splined as at ||3, said spline teeth meshing with the teeth on gear ||2.` The lower closure 88of the blow head cylinder has a bushed cylindrical extension ||4 non-rotatably clamped in position there being an enlargement ||5 'resting on top the split clamp to help support the blow head particularly when the clamp is loosened or is being tightened. Said extension |4 is cut away on the side facing gear ||2 the remainder being left intact thereby providing a dust and safety housing.

pin |2| secured in an extension |22 of the lower closure 88 extends into the bifurcation. As the spider rotates about standard |2, thereby-carrying the blow` heads in a circular path about said Vstandard the pin |2| provides the `driving con nection for rotating the frame |8-| |1.

The upper half ||1 of the frame has an annular hub |23 formed integral therewith and thisI hub is sleeved around the reduced endv ||6 of standard l2 and is rotatable thereon. The lower half of the frame also has an annular hub |24 which is sleeved around the hub |25 of gear ||2 and rotates thereon.

|25 is a gear shaft journaled in aligned bearing housings |26 and |21 formed in the upper and lower frame members respectively, said shaft being hollow to accommodate a vertically movable shifting pin |28 extending above housing |26 and having a knobbed end |29. Pivotally secured to the 'bifurcated lower end of the pin is agear shifting .key |30 to which is attached a leaf spring |3| for biasing the key to the right, Figure 4,

It will be noted that the tapered rollers 18 sup-A gear frame. .|35 is the gear rotated by shaft |25' in the illustration said `gear not being permanently keyed to the shaft. |36 is thegear rotated by gear |35, said gear |36 being mounted on and keyed to the hub |25 of gear ||2. This in turn establishes a driving connection with gear ||2 to thereby rotate the blow pipe chuck shaft. Gear. |31 is representative only of another speed to which the mechanism may be shifted, said gear having a driving connection with gear ||2 through gear |38 keyed onhub 25. It will be noted that with the gear system illustrated, the

blow pipe chuck shaft may be rotated in either direction, or, depending on the speed of rotation of the gear ||2 and the speed of rotation of the column |6,held stationary. i

The two lower gears of the epicyclic gear train on shaft |25 are separated by bronze washers 232 which cause the movable key |30 to disengage one gear before entering the next gear,

said key having beveled surfaces, as at 23|, for

obvious purposes.A

Blow head control mechanism Vertical reciprocation of the chuck shaft and the opening and closing of the molds are controlled manually. The blowing air preferably is on continuously but may be controlled if desired. The mechanism for controlling the vertical reciprocation of the chuck shaft etc. is shown in Figures 4, 6 and 7 to 14 inclusive.

Said mechanism is manually controlled by a lever |10v and each blow head and associated mold has one of the aforesaid controls provided therefor. It is proposed that when the control is moved to one position, the operation of lowering the blow pipe on the previously pre-positioned end of the blow pipe and the closing of the separable mold shall ensue and that the parts shall remain in said position until the control is again actuated, regardless of I how many revolutions may be made bythe table. In other words, the

blowing operation may continue for successive revolutions of the table on any one mold without interruption and likewise the mold may remain 1 in which a piston |43 works, and has cross bores |44, |45, |46, |41, |48 and |49 communicating therewith and a vent opening |50. Each cross bore 1s 'tapped and bore |42 is tapped at the Iupper end and a plug 5| screwed thereinto.

The opposite end of the housing is externally threaded and a packing gland in the form of a perforated cap |52 and gasket |52a mounted -thereon, said gasket encompassing the piston rod |53, and preventing leakage therearound. |54 is a plug provided with a stop pin |55 screwed into bore |41 and this pin limits the uppermost thereby causing the key to project through slot |32 in the shaft |25 and engage with the selected,

gear.

|33 is the upper gear on shaft |25'. engagement with and rotates relative to a fixed rtiSingear |34 keyed on the reduced end ||6 of sta# l tionary standard I2, thereby rotating shaft |25' to which it is keyed when spider 20 rotates the and lowermost point of travel of the piston |43,

`said piston being cut away toprovide a ledge |56.and a ledge |56', Figure 6, for this purpose. |51, Figure 6, indicates a chamber by means of which bore |46 Fig. '1 communicates with bores |44, |45, |48 and |49, and vent'l50 Figs. 9 and 10.

With reference to Figure 6, when piston |43 is in the position illustrated, communication is established between bores |48, |43 and bore |46 by means of groove |58 in the piston. 'Ihe piston, Figure 8, has a vertical passage |59 therenn tcraised position and the actiony of the 1ug |69 and pin |61 is such that as the pin clears the rim of the aperture it is projected horizontally over the edge and again 'latches the piston |43 in up position. The tapers |89, Fig.

7, on either side of lugl |69 limitzthe degree of.

- tilt of the lever |10.

ofthe piston and due to the larger area of chamber |63 forcesthe piston downwardly, passage' |59 acting as a vent permitting the displacement of air in chamber |63a into the upper cham-n' ber |63.

When the piston is in the position shown in Figure 7, bore |46 is in communication with bores |45 and |44 by virtue of V groove |6| whilst bores |48 and |49 are vented due to the position of the segmental groove |49' in the piston. When the piston is i'n raised position, bores |44 and |45 are likewise vented. Further description of the operation of this mechanism will be made in connection with a description of the compressed air system.

The lower end of the piston rod has attached thereto a member |64 which is bifurcated and secured thereto by a cross pin |65. This mem: ber has a'cross bore |66, `Figure 12, in which is disposed a round pin |61, Figure 13, having a notch |68 formed in the underside thereof in which a lug |69 on the top end of aV lever |10 nts. Lever |10 is pivotally connected to member |64 by pin |1|, said member being bifurcated to receive the same. In the position shown in Figure 6, the right hand end of pin 61 is caught over the rim of the aperture in the cap |52, and this holdspiston |43 in raised position. In order to release the pin and drop the piston down, thereby commencing a cycle of operations hirivolving the lowering of the blow pipe chuck and closing the mold, the operator will in practise, rest the blow pipe on the rollers 18 at an angle to the vertical permitting the gather suspended from the lower end to settle toward the bottom of the mold. When in the operators estimation the gather is suiiiciently elongated the blow pipe is moved to a vertical position thereby aligning the upper end thereof with the blow pipe chuck. As the blow pipe is moved inwardly it engages and presses against crowned rollers |16 rotatably mounted on a plate |11 connected to a bolt secured to the lower end of lever |19 by a pin |18. `This tilts lever |19 to the right causing pin |61 to shift to the left out of engagement with the rim of the aperture and into registry with said aperture. Thereupon air under pressure in chamber |63 forces the piston downwardly. As the, piston moves down the hand grip |12, Figure 6, is turned to the right.

Said hand grip is formed as a part of mecha' nism for resetting the piston and is mounted on a shaft |12', Figure 14, suspended by bracket |13 clamped on rod 83. Also mounted on the shaft |12 is a bifurcated member |14 disposed at 90 to lever |12, both being secured on and rotatable with the shaft. The bifurcated member straddles lever 10.

`When the blow pipe is to be released, the operator grasps the handle |12 and pullsl outwardly thereon thereby forcing lever |10 lto be elevated and raising the piston |43. `This action results in the blow head chuck being raised thereby releasing the blow pipe, the mold being opened concurrently with the freeing ofthe blow pipe. Spring |19 assists in restoring the lever `The compressed at r systein v l With reference to Figuresi 1, 3,18 and'24, mounted on theplatform 1 at. the lower left hand side of the machine base. is. a motor I0 having a belt drive |8| connected toV the drive Apulley |82 of a compressor 9. The compressor is of standard construction and has a pressure line |84, figure 24,l leading to a tank |85, there being a by-pass line |86 having an unloader |81 therein. Leading from the 'tank is a pressure line |88 and this line branches into a high pres' sure line |89 supplying the blow head cylinders and the mold actuating cylinders with high pressure air. The other line |90 has a pressure reducing valve |9| therein and conducts low pressure air to the-blow pipes,

` Referring to Figure 3, the high and low y ressure lines |89 and |90, respectively, are in the form of conduits winch enter the hollow standard and `extend upwardly `therein into the reduced portion ||6 where they connect into a stationary bushing |92, Figure 18. |93 is threaded bore into which the end of the conduit |90 is screwed the bore communicating with a passage |94 into which a pipe |95 is screwed leading to the lower chamber|99 of an air distributor |91 having an annular hub |91 encompassing and clamped on the hub |23 of -the upper frame member supporting the epicyclic gear train.l Said distributor has a horizontal wall |98 dividing the chamber into a high pressure compartment |96 Vand the previously mentioned low pressure compartment |99.

The hub of the air distributor is internally threaded and a bushing 200 is screwed thereinto .having a packing gland 20| surrounding pipe to prevent loss of air pressure.

Leading from the lower' compartment |99 are three supply lines 202, Figures l, 4 and 25, each leading to a coupling |03 associated with a blow head by means of which blowing air is supplied thereto.

The high pressure conduit |89 is threaded into a bore 203 in bushing |92, Figure 18, communicating with a pipe 204 threaded into a bore in said bushing and projecting upwardly into the high pressure compartment of distributor |91 being `gasketed where it passes through the dividing wall |99. 205 are supply lines leading from the' high pressure compartment |99 to the lcouplings 296 screwed into bores |46 -in each of the valve housings |4|. The -connections between each of the lcontrol valves and the blow head and chuck actuating cylinders are identical and therefore aldescription of one suchV hookup will sufiice.

Referring to Figures-4, 9 and 10, acoupling 201 screwed into bore |45 is connected to line I8 which conducts air to the piston chamber above piston 9| in the blow head. 208 is a coupling screwed into bore |49 connected to line ||0 conducting high pressure air nto the bottom oi' cylinder 86. 209 is a coupling screwed into bore |44 connected to line 2|0 leading to a T-connection 2| 0', Figure 1, supported by a clamp ring 2|| on column I6 from which branch pipes 2|2 and 2|3 lead respectively to the left andright 6 handfcyllnders 59 connected tothe left. and .rightfhandmold'sections of a cooperating pair of :mold halves,said lines being vconnected to the rear of the cylinders so as to`conduct air under pressure thereto for the forward or mold closing stroke of the pistons.

2|4, fa. coupling screwed into bore |48 Acon- .rnectedto 'line' 21'5 :lead to a T-connection 216 which is.:also, supported by clamp 2| I. Branch lines 2|1andv 2|8lead to the opposite ends of cylinders 59f-f for' conducting high 'pressure' air thereto` for moving the respective pistons. In order to vary the closing speedor time ofthe I respective sections of a pair ofmold sections. v .adjustablevalves 2|8 may-be interposed in the -fluidlines 211'; and 2|8 in either one or both land lnlines- .212 and 2|3. It is preferred that in actual operation that one mold section be moved to closed position in advance of the other. Various movements of the mold halves tosuit any particular operating condition may be obtained through said valves.

The cooling system It is desired to cool the molds by spraying cooling fluid thereinto and to recover `the fluid and recirculate it. 220, Figures 2 and 5, is a pump driven oi the reduction gearing in housing 26 by a worm in housing 22|. The inlet side ofthe pump is connected with the fluid reservoir in the baseof the machine by a line 222 and the outlet side of the pump is connected to a pipe 223 having a spray nozzle 223', Figure 1, located yat the perimeter of the table and directed toward said molds, there being a' valve 224 in said line for control purposes.

Sprayediuid drains through the apertures in table 46 onto the surface of a collecting pan 53 superimposed on the base and supported on tops of webs 42. This pan, Figures 3 and 20, is constructed with a frusto-conical center section 53 and has a radial upstanding rib 225 which acts as a barrier to the flow of fluid connecting in the trough formed by the juncture of the frusto-Y conical section and the wide flaring brim flange 221. -It is desired that the trough have about a 1 drop so-that fluid will flow by gravity in the direction of the arrow into a drain hole 228 at the lowest point of the trough adjacent the rib and will drain therefrom into the compartment A above the radial rib 44, Figure 2, due to the position of the pan on the base. The fluid will pass slowly from compartment to compartment in the base through the communicating passages 45 and will be drawn off from compartment B by the pump, vsedimentsettling out of the same during the progress. In this manner the iiuid is caused The operation.l

It will'be understood that the machine is to be operated at aspeedl dictated by the practical re- :quirements of. production. For instance, on some yclasses of ware. the speed may be: as low as three .per minutey and on other classes :of ware as high .y as twenty perminute or-as high vas the top speed of the machine will-permit, all within practical limits-ofcourse. f' 1 Assuming kthat the` parts in such position of adjustment that the blow machine is at rest with the pipe chucks are elevated as illustratedby the right again it will be appreair is introduced into the pipe by the cooperation sumed that the speed of the rotation of gear ||2 is such as to rotate the chuck'shafts 85 at the proper speed and with the exception of turning on valve 224 so as to spray fluid into the mold, the

machine is ready to operate. It will be remembered that the blowing air is on continuously and i therefore there is no need to valve it.

angle to the vertical and in 1i ne with the open end of bifurcated guide 23| Fig. 1. The table is in constant motion and the operator, when the gather has sagged sufficiently, pushes the'blow pipe home between the guides thereby aligning the tip of the blow pipe with the chuck |05 and tripping lever |10. It is preferred that plate |11 have little movement relative to its support so that rollers |16 will align with the blow pipe.

When.lever. |10 is tripped, pin |61 is withdrawn and this permits air under pressure in chamber |63 to force piston |43 down whereupon compressed air is admitted to line |08 thereby causing piston 9| to descend, the air ahead of said piston being vented through line ||0 and vent opening |50.

' The chuck shaft, which is rotating all the while, descends and engages the hexagon end of the blow pipe thereby rotating the same. Blowing of the tip of the blow pipe with the aperture in the sealing ring |06.

Concurrently with the descent of the blow pipe chuck, compressed air is admitted to line 2|0 thereby forcing the pistons in cylinders 59 to close the mold sections. As the pistons move forwardly in cylinders 59, the air ahead of the pistons is forced outof the cylinders through lines 2 I5 and out the Vent |50.

The table continues to move all the while and,

'after having made onehalf revolution from the loading point, the mold approaches the unloadingposition where-the assistant operator grasps the blow pipe in one hand and simultaneously pulls the lever |12 forward. Pulling the lever forward elevates piston |43 to the position shown in Figure 6. The pressure in lines |08 and 2|0 is released and both lines are automatically connected with the vent |50. Air' under pressure enters lines ||0 and 2|5 thereby causing piston 85 to he elevated which disengages the blow pipe fromthe chuck |05 and disconnects it from the source of blowing air concurrently with the opening of the mold halves. The operator removes the blow pipe with the completed ware thereon from the machine. past the spray nozzle where it is treated with cooling fluid preparatory to receiving a fresh charge of material.

It is evident that the aforesaid machine is slmple in construction, positive and effective in operation and embodies many novel features of construction and operation. A wide range of articles can bemanufactured with the same and it is easily adjusted for different sizes and shapes of articles and does not require skilled`workmen.

Although for the sake of clearness the embodiment of the principles of our invention shown in The open mold continues in its orbit the drawings have been minutely described, varig ous modifications will occur to those familiar with the `art `which are properly within the compass of this invention and therefore we do'not wish to limit ourselves to the specific details herein described but claim broadly:

1. In a paste mold glass machine, a support, a blow head that movesin a circle about said support said blow head having a hollow rod therein for cooperation with a blow pipe, means formoving said blow head asfaforesaid` including a motor and a f gear drive having an adjustable speed reducer, means for rotating said hollow rod comprising a gear operatively connected thereto and a duplex epicyclic gear train for driving said gear, 'said duplex epicyclic gear train being selectively adjustable to vary the speed of rotation of said gear, the meansfor moving said' blow head being adapted to move the gears of the duplex epicyclic gear train having a translatory motion in a translatory path. c

2. In a paste mold glass machine, a support, a blow head that moves in a circular path about said support, .said blow head having a hollow rod therein for cooperation witha blow pipe, a. drive gear for rotating said rod and means for rotating -said drive gear or holding it stationary to thereby rotate the rod comprising a duplex epicyclic gear train having means for selectively changing speeds while the blow head Ais moving in said circular path. Y

3. In `a paste mold 'glass machine, a support,

a blow head that moves in a circular path about said support, said blow head having a hollow rod therein for cooperation with a blow pipe and means for rotating said rod comprisingl a driven Y gear, a duplex epicyclic gear train for driving said gear a driving connection between said driven gear and gear training and means for moving said hollow rod into and out of engagement with a blow pipe whilst the driving connection exists.

5. In a paste mold glass machine, a blowA pipe,

a standard, a column, means for rotating saidcolumn, a blow head connected to the column to rotate about said standard having a hollow rod therein adapted to be moved into and out of operative position with respect to the blow pipe means for rotating said blow head in the fashion specified and means for rotating said rod com'- prising a duplex epicycllc gear train, a gear operatively connected with said rod driven by said epicyclic train, meansfor selectively changmeans for selectively changing speeds and in which the gears having a translatory motion are moved in a translatory path about said support with said blow heads. l

7. In a paste mold glass machine, a support, a blow head, means for moving said blow head in a circular path about said support said blow head having an air operated piston therein and a hollow rod adapted to cooperate with a blow pipe supported by Asaid piston, a source of air under pressure, a distributor having a high pressure chamber for supplying ain to the blow head for actuating the piston and a low pressure chamber for supplying blowing air to the hollow rod, saidy distributor being rotatable relative to the support and disposed substantially on -the axis of rotation of the blow head about said support. v

8. In a paste mold glass machine, a support, a plurality of blow heads mounted, means for moving said blow heads in a circular path about said support each of said blow heads having "an air operated piston therein and a hollow rod adapted to cooperate with a blow pipe supported by said piston,\a source of air under pressure, a distributor in fluidic communication therewith common to all of said blow heads said distributor having a high pressure .chamber for supplying air to the said blow heads for actuating the pistons thereof together with fluid lines communieating with the piston chambers having manually actuatable valves therein and a low pressure chamber -for continuously supplying air to the hollow rods, said distributor being rotatable in its entirety relative to the support and disposed substantially on the axis of rotation of the blow heads about said support.

9. In a paste mold glass machine, a blow pipe. a blow head having a piston therein, a hollow rod supported by said piston and adaptedto be moved into and out of engagement with the blow pipe thereby and means forming the support for said rod comprising anti-friction roller bearing seing the speed of rotation of said last named gear having a hollow rod therein for cooperation with a blow pipe and means for rotating said hollow rods in unison comprising a driven gear common to and in driving connection with said rods together with a duplex epicyclic gear train having cured by means of the outer race thereof to the aforesaid piston.

10. In a paste mold glass machine, a blow pipe, a blow'head having a piston therein said piston havin-g 'a chamber therein sealed with respect to the piston chamber in which the piston moves, a hollow rod supported by said piston and having one end in communication with the chamber within the piston said rod being adapted to be moved by the piston into and out of cooperation with the blow pipe, a source of air under pressure communicating with the chamber within said piston and means forming a `support for said hollow rod comprising an anti-friction bearing secured by .the outer race thereof to the piston there being no mechanical connection between the hollow rod and the source of air under pressure.

11. In apparatus for the manufacture of glassware, a blow head having a piston therein said piston having a chamber therein sealed with respect to the piston chamber in which the piston moves, a hollow rotatable rod supported by said piston and having `one end in communication with the chamber within the piston, said rod being arranged to be moved by the piston into and out of cooperation with the blow mold, a source of air under pressure communicating with the chamber within saidpiston and means .forming a support for, said hollow rod comprising an antifriction bearing secured by the outer racef thereof to the piston there being no mechanical connection between the hollow rod and-the source of air under pressure and means -for rotating said having a hollow rod therein, blow pipe rests,

blow pipes, means for moving said rod into and the blow pipe'by sai'd 'piston, a source of compressed air for actuating said piston and a control therefor comprising a piston movable in one direction by air under pressure and in the other direction manually there beingmeans for latching said piston in one position of adjustment comprising a-pin slidable in a direction perpendicular to the direction of movement ofthe piston last mentioned. Y

13. In a paste mold' glass machine, a blow head having an air operated piston therein and means for controlling the. admission and discharge of air to the piston chamber comprising a housing having a control piston therein movoble in one direction by air under pressure and in the other direction manually, there being means for limiting the degree of travel of said piston and means for latching the same in one position'of adjustment comprising a shiitable pin movable crosswise of theaxis of the control piston.

14. In a paste mold glass machine, a support, a

out of cooperation with the blow pipe associated with each respective blow head and blow mold, the vconnection between said blow pipe and said hollow rod being such that thereis no mechanical'pressure exerted on the blow pipe thereby when the blow pipe is on'the rest and supported by the rod, means for supplying air under pressure to the hollow rod and means for rotating said rod.

15. In an organized paste mold machine for manufacturing articles of glassware, the .combination which comprises a base having a vertical support mounted thereon, a mold table mounted on said support said mold table being rotatable and having separable blow molds mounted thereon, blow heads superimposed relative to said blow molds, blow pipes, said machine including a selfcontained liquid circulating and cooling system a duplex epicyclic gear train.

FREDERICK WILLIAM STEWART. MATTHEW JAMES KELLY. ASHLEY J. REEK. 

